Carpet-cutting machine.



PATBNTED MAN'. 13, 190C. R. 1:. N W.. A. DUNN. 1 A CARPET CUTTING MACHINE.

'APPLICATION Hmm JUNE 2, 1905.

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vit-knwir that we,`,R`APHAEL. E..,DUBE' afi-'d1 winnen @aplaza-11S time United Stassy-anti ji admis; aff Faribault, .in the Ms ,whatthe-foaming@ a fau;

achine which will sive'ii carpets and fabrics of l. all kinds into longitudinal strips` andi' slash "the edges thereof regularly and' Reference is to be had tothe accompanying drawings, forming a part of this specifical tion, in which similar characters of reference indicate corresponding parts in all the figures.- v

Figure 1 -is a side elevationof a machine,

. showing the principle ofthe present invention. Fig. 2 is a front elevation thereof. Fig. 3 is a sectional view on the line 3 3 of Fig; 2 on'an enlar ed scale. Fig. 4 .is a sectional view on the ine 44 of Fig.r3, and Fig. 5 is a sectional view of one of the knives employed.

Upon a frame l0 two shafts 11 and 12 are journaled. Power isapplied to these shafts in any 'way-as, for example, by means of a pulley 13, mounted upon one of them-and they aregeared together in such afmanner as to impart the necessary rotation from one to the other. The earing shown for this purpose comprises a c utch 13a, a worm 14 on the shaft 11, a worm-wheel 15 upon' a third shaft 16, a bevel-gear 17 upon the same shaft, and a bevel-gear ,18 upon the shaft 12. On the shaft 11 are mounted a series of circular slitting-knives 19, and on the shaft 12 a series of feeding devices, preferably in the form of disks 20, having saw-teeth upon their peripheries. These disks are located between the several circular knives, and the shaft 12 is preferably geared to the shaft 11 in such a manner that the feeding-saws will advance *Iiritprder"tofprovide'a nap: or,

-Patented .March 1,3, 190e.

" "the carpetl onel inch to three revolutions of' ithe circlar'knives. l e Y ";Each circular knife is provided v`se- Iries of perforations 21 or other devicesjby' l means :of which, frayingknives ',2-2'1'canfbe sel cured`inadjustedepositions.` fIhesefrayingj knives have blades 28"extendingatrightanany desired number of them can be mounted uponf-'th-e circula'rfknives'.`y They are' preferi geared in the manner mentioned abovethesev #knives would producesnc'shtsl 1nv every inch "In 'order to .provide an abutment l ing the" strips Awhile 1thejjfraying-kniveslfare cuttihgthroughfth'e edgesthereoffanfadjustthef'mframe of themachine. fl`his'yadjiistable rplateisarcshaped'in form and has anenjd'or projection- 26 extending to a point nearthe path of the cutting edges of the knives 23 and holds the strips in the proper position for fraying. This projection also affords a support for the carpet while it is being slitted by the circular knife, and it has a slot 27 for receiving the edge of said knife. Its adjustment is preferably lsecured by a screw 28, having a head located in an elongated slot 29 and passing into the portion 25 of the frame. The frame is provided with cross-bars 30 and 31, having circular 'slots 32 and 33, respectively, for receiving the edges of the feeding-wheels and the circular cutters. The purpose of adjusting the plate v24 and the knives 22 is to provide for the wear of the circular knives 19. It Will be seen that they can both be moved inwardly toward the shaft 11 as the edge of this cutter 'is worn away by grinding it. In setting up the machine also these adjustments are of advantage. The frame is preferably provided with a guard 34 for preventing the operator from coming into contact with the rapidly-rotatingknives.

The operation of the-machine will be readily understood. The carpet or other fabric is lfed in at the top of the feeding-wheels and is ca rried by them from a point 35 t a point 36, where it is discharged in the form of frayed strips. As the .carpet advances into IOO it is longitudinally slitted, and being held by the feeding-wheels the knives 23 cut each side of the strips, so that the material will easily pull out. The feed-wheels holding the central part of each strip, this fraying operation is easily accomplished and a firm center the width of the teeth on the feed-wheels is left to form a body for reweaving. The strips may be cut in any width, but are preferably made about five-eighths of an inch.

Having thus described our invention, we claim as new and desire to secure by Letters Patent- 1. A cutting-machine, comprising a series of rotary cutters each having a blade secured thereto at an angle to its surface, and a series vof rotary feeders mounted between the cutters.

v2. A carpet-cutting machine, comprising a rotary knife, an adjustable plate mounted in stationary position adjacent to the knife and having a slot for receiving the knife, and an end adapted to support material adjacent to the knife. q

3. A carpet-cutting machine, comprising two sets of rotary knives, one adapted to cut longitudinally and the other transversely, a series of feeders mounted between said knives, an adjustable'plate mounted in stationary position between the knives and each having a slot for receiving the longitudinal cutting-knife, and an end adapted to support material adjacent to one of said transverse knives.

4. A cutting-machine comprising a series of rotary knives, a curved plate adjustably mounted between each two adjacent knives, said plate having a longitudinal slot, a curved support for said plate, and means passing through said slot for securing the support to the plate..

5. A carpet-cutting machine, comprising a frame, two rotary shafts journaled thereon, means for transmitting the motion` of rotation from one shaft to the other at a different rate of speed, a series of circular cuttingknives upon one of said shafts, and a series of circular feeding devices upon the other.

6. A carpet-cutting machine, comprising a frame, two rotary shafts journaled thereon, means for transmitting rotation from one shaft to the other at a different rate of speed, a series of circular knives upon one of said shafts, a series of circular feeding devices upon the other shaft, a series of cross-bars upon the frame mounted between said knives and each of said cross-bars having a circular depression for receiving the edges of the knives and feeding devices.

v In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

RAPHAEL E. DUBE. VVILFRID A. DUBE.

Witnesses:

P. F. RUGE, N. S. HEAD. 

